Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0b29a3daaa1a46d5059601dfc098ebb44c0fe972c9c2e110e13409b26f32c35b' 
  AND token = 'BAeycLrb1PGluT7S4S+5Xqz5808HY+lSP5OQczkxmDU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}